Combs was on her way to meet her new niece when she, too, went into labor.

"I was getting ready to go see her and I started having contractions and I was like, ‘Well, looks like they're going to have the same birthdays,'” Combs said.

Combs’ mother drove her to the hospital late Tuesday morning thinking they might not get there in time.

"She was going kind of crazy. She was actually kind of scaring me on the way there because she was panicking, like 'Oh my gosh, I don't want to deliver this baby,'” Combs said.

Combs arrived with plenty of time to spare and, as fate would have it, the two sisters crossed paths.

"I saw her wheeling into the labor delivery room while I was wheeling out of it. We were able to wave to each other,” Richardson said.

Combs spent six hours in labor and at 7:04 p.m., Archie David Combs joined the family weighing in at 9 pounds, 3 ounces and measuring 22 inches.

About 15 minutes later, the entire family got together with their two newest additions for the first time.

"I think being able to meet Emma around the same time I met my son is the thing that's going to stick out the most for me because it was like I met him and then a couple minutes later I was able to meet my first niece, which I thought was really cool,” Combs said.

The sisters spent their hospital stay in nearby rooms.

Both moms and babies are doing well and are expected to go home Thursday.

The sisters said it isn't the first time they've shared milestones. Last summer, Richardson, Combs and their 24-year-old sister all got married and Combs’ 15-month-old son, Aiden, shares the same birthday as her youngest sister.

Thousands of California acres are ablaze as firefighters battle at least 21 wildfires throughout the state, but while many of those fires are small or mostly contained, the wind and heat that are spreading the Rocky Fire in Northern California -- and...